On Fri, Dec 21, 2018 at 11:57:53AM +0100, Jinpu Wang wrote:
+cc Greg, stable Greensky, James J <james.j.greensky@xxxxxxxxx> 于2018年12月21日周五 上午11:48写道：Commit d38d272592737ea88a20 ("perf tools: Synthesize GROUP_DESC feature in pipe mode") broke the LT 4.14 branch when using event groups in pipe-mode. # perf record -e '{cycles,instructions,branches}' -- sleep 4 | perf report # To display the perf.data header info, please use --header/--header-only options # Oxd7c [0x60]: failed to process type: 80 Error: Failed to process sample Commit a2015516c5c0be932a69 ("perf record: Synthesize features before events in pipe mode") is the fix. Can we get this cherry-picked and applied?
I've queued d38d272592737ea88a20 for 4.14, thank you. -- Thanks, Sasha
